CN101790678B - Wireless network and methodology for automotive service systems - Google Patents
Wireless network and methodology for automotive service systems Download PDFInfo
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- CN101790678B CN101790678B CN2008800253690A CN200880025369A CN101790678B CN 101790678 B CN101790678 B CN 101790678B CN 2008800253690 A CN2008800253690 A CN 2008800253690A CN 200880025369 A CN200880025369 A CN 200880025369A CN 101790678 B CN101790678 B CN 101790678B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/26—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes
- G01B11/275—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes for testing wheel alignment
- G01B11/2755—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes for testing wheel alignment using photoelectric detection means
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/66—Remote control of cameras or camera parts, e.g. by remote control devices
- H04N23/661—Transmitting camera control signals through networks, e.g. control via the Internet
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/38—Services specially adapted for particular environments, situations or purposes for collecting sensor information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
- H04W76/11—Allocation or use of connection identifiers
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B2210/00—Aspects not specifically covered by any group under G01B, e.g. of wheel alignment, caliper-like sensors
- G01B2210/10—Wheel alignment
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B2210/00—Aspects not specifically covered by any group under G01B, e.g. of wheel alignment, caliper-like sensors
- G01B2210/10—Wheel alignment
- G01B2210/16—Active or passive device attached to the chassis of a vehicle
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B2210/00—Aspects not specifically covered by any group under G01B, e.g. of wheel alignment, caliper-like sensors
- G01B2210/58—Wireless transmission of information between a sensor or probe and a control or evaluation unit
Abstract
A method and apparatus are provided for forming a wireless communications network using a standard communications link between a master controller and at least one slave device. In one example, a list of available slave devices for the network is generated, valid slave devices are determined from the list of available slave devices based on an identification protocol of the standard communications link, and the at least one slave device is selected from the valid slave devices. A network identification is established between the master controller and the at least one slave device, and the network identification is used to establish a network comprising only the master controller and the at least one slave device.
Description
Technical field
Subject content of the present disclosure relates to the vehicle service system, such as wheel alignment system.The disclosure is applied to the radio communication between the parts of vehicle service system especially.
Background technology
The multiple angles that present orthodox car wheel alignment system is measured wheel and suspension with the sensor on the wheel that is connected to vehicle or detecting head.These angles are sent to host computer system, and they are used to the calculating of wheel orientation angle in host computer system.In the configuration of traditional orientator of standard, four coordinate detection heads are connected to the wheel of vehicle.Each sensor head comprises two levels or toe-in value survey sensor and two vertical or roll/pitch sensors.Each sensor head also comprises electronic unit, with support whole sensor data acquisitions and show with orientator control desk, local user input, this locality of being used for feedback of status, and diagnosis and demarcate communicating by letter of support.Described four sensors and electronic units and the mechanical hull that consists of each detecting head must copy four times, because each wheel will be used one.
In recent years, the wheel of motor vehicle uses computer assisted, three-dimensional (3D) mechanical visual positioning system to position in some shops.In such system, one or more cameras visual field target is installed on the wheel of vehicle, and the image of these targets of Computer Analysis in the positioning system is to determine the location of wheel position and automotive wheel according to wheel-position data.Computing machine instructs operating personnel suitably to adjust wheel to be used for accurate location based on the result of calculation that the processing of view data is obtained usually.Wheel alignment system or the orientator of this image processing type are called as " three-dimensional locating device " sometimes.A kind of example of using the wheel alignment meter of such image processing is the visual orientator of 3 Dimension Image Technique (Visualiner 3D) or " V3D ", it can be bought from the Zhuo Bin company (John Bean Company) in Arkansas State Kang Wei city, and Zhuo Bin company is a mechanism of Snap On Tools Corp. (Snap-on Inc.).
Perhaps, mechanical visual wheel alignment system can comprise a pair of passive detection head and a pair of active sensing detecting head.This passive detection head is used for being installed in first pair of wheel of vehicle to be measured, and this active sensing detecting head is used for being installed in second pair of wheel of vehicle.Each passive detection head includes target, and each active sensing detecting head includes the imageing sensor for generation of view data, when various detecting heads were respectively installed on each wheel of vehicle, this view data comprised the image of the target of a passive detection head.This system also comprises the spatial relation sensor that is associated with at least one active sensing detecting head, in order to can measure the spatial relation between the active sensing detecting head when the active sensing detecting head is installed on the wheel of vehicle.This system further comprises computing machine, and this computing machine is for the treatment of the view data relevant with the observations of target and from the position data of spatial relation sensor, with the calculating of at least one measurement of carrying out vehicle.
Because each above-mentioned wheel alignment system (for example comprises a computing machine and at least two distance sensor unit, coordinate detection head, camera or sensor measuring head), wishing provides radio communication between computing machine " base station " and distance sensor unit.The typical wireless network structure of using in such vehicle service system is based on special-purpose wireless technology.Generally, the technology of non-own special technology or single source can provide the concrete solution for technical need, introduces to the market fast, and product function is provided cheaply and don't can consumes precious inside and exploit natural resources.Unfortunately, these special technologies had just been eliminated before the service system product life cycle finishes usually.They might be restricted to the Performance And Reliability of whole product particular characteristic and the reliability of single source device in addition.Normally, it can be expensive replacing the desired change of special technology, and can cause the problem of reliability and service aspect.
On the contrary, solution standard or multi-source is designed to wide consumption market, and usually lacks the specific function for the vehicle service system of garage environment.Follow the pressure of consumption market, standard technique also can change rapidly along with the variation in market, therefore may require frequently increment type product design to change.If these variations can not easily be accepted, main computer boxes may bear reliability and cost of serving becomes bad result.In addition, many standard technique designs comprise many different performances and the wide market of functional requirement in order to contain.This technical retractility causes complicated setting program or configuration usually, and these setting programs or configuration can user that trusted or that trained changed unintentionally.Sometimes the user may be familiar with the technology of standard to a certain extent, and attempts modification or change to be configured to comprise that undesirable device or parts, these devices or parts can adversely have influence on performance or main computer boxes was lost efficacy.
Here exist the equipment that is used for wireless network architecture and the demand of method, this wireless network architecture has utilized the standard radio technology with the reduction cost, and the network performance of installing, being easy to serve framework (bay) network settings, reaching enhancing to the simplification of service system main frame is provided simultaneously.
Summary of the invention
The instruction here is by realizing that wireless network has improved traditional wireless vehicle service system, this wireless network has utilized the technology of standard, comprise simultaneously the wireless access node of customization with configuration and the setting of supervising the network, and the connection of main service system is provided.
According to the present invention, between master controller and at least one slave unit, form the method for cordless communication network by a kind of for the Application standard communication link, and partly realize aforesaid and other advantage.The method comprises: for the network with standard communication link produces available slave unit tabulation; Identification protocol based on described standard communication link is determined effective slave unit from available slave unit tabulation; From described effective slave unit, select at least one slave unit; Between described master controller and described at least one slave unit, set up Network Recognition; And use described Network Recognition to set up the network that only comprises described master controller and described at least one slave unit.
According to another aspect of the present invention, a kind of vehicle service system comprises primary processor, master controller and at least one slave unit.Described master controller is used for the Application standard communication link and described at least one slave unit carries out radio communication, and described at least one slave unit is used for collecting the vehicle service data, and described data are transferred to described master controller via described standard communication link.Described master controller comprises the processor that is configured in order to preprocessed data.Described primary processor and described master controller communicate with one another, and the processor of described master controller sends to described primary processor to be used for further processing with pretreated data.
Additional advantage of the present invention and other characteristic will partly propose in explanation subsequently, and these advantages or characteristic are by to the examination of following content and those of ordinary skill in the art is become cheer and bright, and perhaps these advantages or characteristic can acquistions from example of the present invention.Advantage of the present invention can be familiar with or acquistion, as pointed in accessory claim especially.
Description of drawings
With reference to the accompanying drawings, wherein identical Reference numeral represents identical element in the full text, and wherein:
Fig. 1 is the theory diagram of wheel alignment system of the present invention.
Fig. 2 is the theory diagram of the master controller that uses in the system claimed in claim 1.
Fig. 3 is the process flow diagram that explicit declaration the present invention sets up the illustrative methods of wireless network.
Fig. 4 is the process flow diagram that explicit declaration the present invention sets up another illustrative methods of wireless network.
Embodiment
That example shown in each accompanying drawing provides is proprietary, cheaply, high performance, reliable wireless network, this wireless network comprises the embedded radio device and is connected to the wireless access node of service system main frame.Disclosed wireless network is " non-habitual ", because only there is a limited number of wireless device of verifying in advance can be in order to forming network, and after network was set up, wireless access node not be searched this extra wireless device usually.In the service-specific system, in wheel alignment system, advantageously only allow the known devices of service system or standardized component to set up Radio Link, with the part as wireless network special-purpose sealing or non-habitual.As element of the present invention, described wireless access node will be managed these as the link of the part of ad Hoc wireless network sealing and that set up in advance.
In specific openly example, then described wireless access node pre-service sensing data and/or compute location angle send to these information system host to be used for demonstration and user exchange.Described wireless access node can realize in addition special purpose interface or, alternatively, realization can provide for the service system network settings standard web server interface of webpage, and can provide service data or result to client or the main frame based on browser.
More particularly, particular instance shown in the accompanying drawing has realized utilizing the wireless network of standard technique, but comprised the wireless access node of customization with configuration and the setting of supervising the network, and provide the connection of main service system such as Ethernet via improving means of communication that set up, standard.The mode that a target of the wireless access node of customization is to set up specifically (i.e. special use) non-habitual network makes up the standard radio technology, and this specific non-habitual network configuration is for being used for sound passive master/slave device based on communicating by letter.The wireless access node of customization also produces level of abstraction, this level of abstraction the long-term communication technology of the perfect foundation of standard such as Ethernet, and standard but between the radio network technique such as bluetooth that change potentially, the change in the wireless technology is by the access node management rather than by the service system Host Administration thus.Should be understood that other radiotelegraphy except bluetooth can be used in the disclosed wireless network, such as ultrabroad band (UWB), 802.11 (WiFi) or 802.15.4/Zigbee.
Fig. 1 and Fig. 2 have described a kind of wheel alignment system, and such as traditional orientator or imaging orientator, wherein the embedded radio module is connected to sensor or camera sub-system, produce thus wireless senser subsystem communication link.The element that has omitted vehicle illustrates being easy to.
With reference now to Fig. 1,, a kind of exemplary vehicle service system 100, automobile wheel alignment system for example, comprising: primary processor 110 is also referred to as the service system main frame; Master controller 120 is also referred to as wireless access node; A pair of slave unit 130, for example the active sensing detecting head is also referred to as sensor port (sensor pod); And a pair of passive detection head or target 140.Certainly, the number of slave unit 130 and target 140 depends on the type of service system.Master controller 120 is used for using traditional standard communication protocol to carry out radio communication such as bluetooth and slave unit 130.Slave unit 130 is used for collecting the vehicle service data, and described data are transferred to master controller 120 via standard communication protocol.Master controller 120 is connected to primary processor 110 via standard communication link such as Ethernet and via cable 150.
As shown in Figure 2, in this example, master controller 120 comprises: processor 120a, this processor 120a are configured in order to the data of pre-service from slave unit 120; Interface 120b such as Ethernet interface, is used for processor 120a is connected to primary processor 110 via cable 150; And embedded radio module 120c and antenna 120d, be used for carrying out radio communication with slave unit 130.Therefore, primary processor 110 and master controller 120 communicate with one another, and the processor 120a of master controller 120 sends to primary processor 110 to be used for further processing with pretreated data.In wheel alignment system 100, data from sensor port 130 are measurement data or diagnostic data, and main processing controller 120a and primary processor 110 is used for calculating the result in the mode that is fit to specific wheel alignment system, such as wheel orientation angle.
In Fig. 1 and Fig. 2, primary processor 110 and master controller 120 are depicted as independent parts.But if necessary, they can be incorporated in identical " box " each other.Perhaps, any specific service system device such as sensor or camera sub-system, can comprise master controller 120, and the link of management wireless network.As discussed above, wireless access node (master controller 120) is Ethernet interface 120b via standard communication interface, and the necessary bridge of from wireless network to the service system main frame (primary processor 110) is provided.
In particular instance, wireless access node/master controller 120 is carried out the service system host function of some or all; For example, the service system data that pre-service is collected by slave unit 130, thus the primary processor of lower-performance 110 can be used in the system host.In some instances, master controller 120 utilizes sensing data to calculate wheel orientation angle, and the result is offered client, such as the client that webpage is offered based on browser.In other example, master controller 120 is stored, is processed and/or the vehicle standard data are provided, such as localization criteria.
Alternatively, master controller 120 provides to the intelligent gateway of other network service system main frame or sensor.In particular instance, master controller 120 provides positioning system, and master controller 120 is the part of this positioning system, and the communication link between (shop-wide) management system in traditional shop.This makes, and management system can provide information to positioning system in the shop, and/or makes positioning result can be sent straight to management system in the shop.In other example, master controller 120 provides raw data or diagnostic result to other service system, such as collision repair system (for example, vehicle frame is repaired machine) or other positioning system.In other example, master controller 120 is connected with sensor network outside the sensor port 130, such as term vehicle internal sensors, outside tire pressure sensor, loading height sensor, steering angle sensor etc.
Refer again to Fig. 2, a kind of exemplary embedded radio module 120c is positioned at the bluetooth Class 1 module GS-BT2416C1 that the Genevangenevese ST Microelectronics of Sweden (STMicroelectronics Corporation) makes by general headquarters.Bluetooth is the wireless industrial standard communication link that comprises various protocols layer and service function.The embedded Bluetooth device can be found in PDA (personal digital assistant), mobile phone, portable computer and other user and industrial electronics.STMicw Electronics's bluetooth module (STMicroelectronics Bluetooth module) is highly integrated device, the whole bluetooth HCI layer message that define in its support Bluetooth SIG 1.1 standards.
Described STMicw Electronics bluetooth module is designed to be integrated into calculation element, and it can transmit common or limited request message in this calculation element, and this request message can be received and identified by near other blue-tooth devices, and sets up communication link thus.When link was set up first, shared link secret key was created and shares with each device, and described each device is a part that is called the licensing process of pairing.If link is set up in advance, then this mandate is accepted automatically by initial blue-tooth device.Initially set up link and pairing described device common claimed apparatus certain level set in advance or the user known to the knowledge of specific device, such as device name and the link secret key that shares.
Can set up with any previous unpaired blue-tooth device the adaptability blueteeth network of link, other is mutual to require user and at least one device to carry out certain level, to create and configuration shared link secret key.In the vehicle service system of special use, in wheel alignment system, advantageously only allow the known devices of service system or standardized component to set up Radio Link, with as a part special-purpose sealing or the non-habitual wireless network.As element of the present invention, wireless access node (for example, master controller 120) will be managed these links, and these links are the part of the pre-established ad Hoc wireless network of sealing.
According to particular instance of the present invention, each device (for example, slave unit 130) prewired specific names and link secret key code of being equipped with of ad Hoc wireless network.Network controller 120 utilizes the information of pre-configured device name and secret key code and each slave unit 130 to set up link, then uses this device information to authorize and does not need that the user's is mutual.No matter be which service system device management wireless network links, but only known pre-established slave unit can add network.Each such radio network device can with non-Emerging Pattern operation, be hidden with respect near the non-isolated plant the network.Even other non-isolated plant has been found the device in the special-purpose close network, they can not be accessed, and have kept thus globality and the performance of disclosed wireless network.
And the transmission by with that determine and lasting mode coordination data has strengthened the performance of disclosed wireless network, and has improved the reliability that data transmit.Wireless communication link Once you begin, dedicated network has just been set up, and master controller 120 is coordinated the transmission of the full detail in the passive network configuration.More specifically, main device 120 will be according to request or solicited message periodically.All other non-master network device such as slave unit 130, will only transmit in response to the specific request that comes autonomous controller 120.This master/slave configuration is by avoiding having protected bandwidth at network equipment with transmission collision and retry that particular network (ad-hoc) always occurs when communicating by letter.Advantageously in the situation of power saving, slave unit 130 can interrupt power supply or enter sleep pattern at needs, and with predetermined time gap periods ground activate to receive order and the request of data of autonomous controller 120.In addition, master controller 120 or slave unit 130 know whether when the master/slave commitment defini interval that misses in succession and have communication issue.This deterministic communication plan allows Rapid Establishment and uses backup configuration or the communication path that substitutes, until recover common network link, produces communication delay inconspicuous for the user.
The method of setting up and optimally using above-mentioned wireless network will be described now, comprise a kind of " discovery mechanism (discovery mechanism) ", this discovery mechanism allows the slave unit of a plurality of same types to use with being closely adjacent to each other and can not disturb each other network.For example, the automobile services shop can have more than one wheel alignment meter with wireless network, or very near shop can have the orientator with wireless network.Wish to set up a kind of network so that the main wireless device that is associated with control desk only with the wireless senser port communication that is assigned to this control desk, and in the sensor port will be only and they assigned console communications from wireless device.Thus, according to this instruction, in the shop with two chassis wheel orientator, wherein an orientator comprises measurement port A and measurement port B, another orientator comprises measurement port C and measurement port D, a control desk is set to ad hoc communicate by letter with sensor port B with sensor port A, and another control desk is set to ad hoc and communicates by letter with sensor port D with sensor port C.
For configuration-system has easily used training pattern to realize this target.In training stage, near the device main wireless device (control desk) will scan (with reference to inquiry).Before judging that inquiry is finished, definition here has the maximum number from the response of this inquiry.When the device (each device has unique bluetooth device address) of " available " has been determined in described scanning, attempt to be created to the asynchronous of each device and connect towards connecting (ACL).
Referring now to Fig. 1 and Fig. 2 the some illustrative methods that are used for setting up ACL and piconet (piconet) are described.Be used for realizing that the system of these methods comprises master controller 120 and at least one slave unit 130, this system is the Application standard communication link between master controller 120 and at least one slave unit 130, such as bluetooth, to form cordless communication network.For realizing these methods, master controller processor 120a is configured to carry out following step: produce the available slave unit tabulation that is used for network; Identification protocol based on described standard communication link is determined effective slave unit 130 from available slave unit tabulation; From described effective slave unit, select at least one slave unit 130; Between master controller 120 and at least one slave unit 130, set up Network Recognition; And use Network Recognition to set up the network that only comprises master controller 120 and at least one slave unit 130.In some instances, master controller 120 has unique PIN to set up communication network with one group of desirable sensor port.This allow in same adjacent domain some control desks only with suitable sensor communication.In other example, do not use these unique PIN, and set up communication network with the Bluetooth address of desirable sensor port.
An illustrative methods that is used for setting up wireless network of the present invention is used personal identity number (PIN) code, and sensor port and near other device (such as bluetooth telephone, personal digital assistant (PDA) etc.) are distinguished.Each subordinate wireless device (for example, sensor port) will comprise for the default PIN code of authorizing, and have unique identification address for standard communication link, such as Bluetooth address (BDADDR).The master controller 120 of orientator system will attempt to use default PIN and each port to connect.If have a plurality of orientators in the shop or in very near zone, sensor port may comprise the PIN that is different from default PIN.Master controller 120 allows to have one group of limited predetermined PIN code.If use default PIN not connect with sensor port, then orientator will be attempted to set up the ACL connection with other each predetermined PIN, be established or use whole predetermined PIN until connect.The orientator sensor network only allows to be authorized in response to the sensor port of a predetermined PIN.
If successful connection is thought that then this device is " effectively " device, and is recorded as efficient apparatus.If connection failure then after the number of attempt that limits, is ignored this device (it is some blue-tooth devices that this device is assumed to be, rather than sensor port).The maximum number that can have the restriction that allows the ACL connection here.If reach this number, then will cancel the further connection of any other device will be attempted.
In case known " effectively " device tabulation (for example, the sensor port in the zone) then can form piconet.This piconet comprises a main wireless device (master controller 120) and one or more subordinate wireless device (sensor port 130).Respectively installing in the piconet 130 will be assigned with identical PIN code.If have more than one orientator in the shop, each orientator can be set up piconet with different PIN.The PIN code of predetermined group is arranged to be used for distribution here.The PIN code of distributing can be chosen the menu from control desk (be connected to master controller 120 and by master controller 120 control).This is chosen and can directly make based on position or other means of identification of shelf position (bay location), storage.At the software inhouse of master controller 120, will distribute unique PIN for given position.
Process flow diagram referring now to Fig. 3 describes the method for using PIN to set up wireless network in detail, and step is wherein carried out by the processor 120a of master controller 120.In the beginning (step 300) of process, master controller 120 scanning available apparatus (step 305), and record available apparatus tabulation (step 310).First device in step 315 in the selecting arrangement tabulation, and in step 320, from the PIN of predetermined group, select a PIN, such as default PIN.In step 325, the default PIN of master controller 120 trial uses sets up ACL with selected device and is connected.
If set up connection (step 330), selected device is registered as efficient apparatus in step 335.If use default PIN after the trial of predetermined number, can not connect (step 340), master controller 120 will be attempted to use other each predetermined PIN to set up ACL to connect, and connect or will have used whole other predetermined PIN (step 345 and step 350) until set up.
After the validity of the first available apparatus in having determined tabulation, next device in step S355 in the selective listing, and determine its validity by execution in step 320-350.After whole available apparatus in having confirmed the device tabulation (step 360), master controller 120 has determined whether to have been found that the efficient apparatus (for example, just in time two devices) (step 365) of predetermined quantity.If so, be that whole efficient apparatus distribute PIN in step 370, perhaps distribute default PIN or distribution to be pre-stored in PIN in the master controller, and in step 375, use this PIN to form piconet.
If determine the predetermined quantity that outnumbered of the efficient apparatus that has been found that in step 365, which efficient apparatus the user must manually select be used as the part of network; For example, by input device on the efficient apparatus of each selection, such as keyboard, select (step 380).Master controller 120 poll efficient apparatus, and record the BDADDR of each selected device, disconnect (step 385) with unselected efficient apparatus simultaneously.Then be that selected efficient apparatus distributes PIN in step 370, and in step 375, use PIN to form piconet.
As the replacement scheme of identifying slave unit with PIN, this system can use unique Bluetooth address (BDADDR) of each subordinate wireless device to set up piconet.In this example, master controller 120 does not distribute PIN to slave unit 130 in piconet.Alternatively, each slave unit 130 uses its Bluetooth address to be connected to piconet.
Process flow diagram referring now to Fig. 4 describes the method for using BDADDR to set up wireless network in detail, and step is wherein carried out by the processor 120a of master controller 120.In the beginning (step 400) of process, master controller 120 scanning available apparatus (step 405), and record available apparatus tabulation (step 410).First device in step 415 in the selecting arrangement tabulation, and in step 420, the default PIN of master controller 120 trial uses sets up ACL with selected device and is connected.
If set up connection (step 425), selected device is registered as efficient apparatus in step 430.If use default PIN after the trial of predetermined number, can not connect (step 435), next device in step 440 and step 445 in the selective listing, after the validity of having determined the first available apparatus in the tabulation, next device in step S55 in the selective listing, and determine its validity by execution in step 420-435.After whole available apparatus in having confirmed the device tabulation (step 440), master controller 120 determines whether to have had been found that the efficient apparatus (step 450) of predetermined quantity (for example, just in time two devices).If so, in step 455, use the BDADDR of efficient apparatus to form piconet.
If determine the predetermined quantity that outnumbered of the efficient apparatus that has been found that in step 450, which efficient apparatus the user must manually select be used as the part of network; For example, by input device on each selected efficient apparatus, such as keyboard, select (step 460).Master controller 120 poll efficient apparatus, and the BDADDR of each device of selecting of record disconnect (step 465) with unselected efficient apparatus simultaneously.In step 455, use the BDADDR of selected efficient apparatus to form piconet.
In another other example, the user wishes to become the BDADDR of slave unit 130 of a part of wireless network via input equipment, and keyboard 120e is manually directly inputted master controller 120 as shown in Figure 2.In this example, master controller 120 is not searched for available/efficient apparatus.
For making training still less disturbed, in other example of the present invention, provide quick training pattern, when only having an orientator in the shop, use this pattern.In this pattern, two slave units 130 all are opened, and if only find two slave units 130, will automatically generate piconet and distribute default PIN.Alternatively, use Bluetooth address (BDADDR).
In the piconet training pattern, but the sense organ perceptible stimulus that operating personnel are produced by computing machine such as a series of screen display, is guided through each step of process.Then training pattern is stored into computer-readable recording medium, such as the database on the hard disk of primary processor 110.The training pattern data set be bluetooth device address (BDADDR) with the complete PIN embodiment of being connected in Fig. 3 in produce the PIN code that is associated that ACL connects.In the alternate embodiments of Fig. 4, only bluetooth device address (ADADDR) is stored the device that is associated with specific master controller to be used for.
In case set up network, some standard feature of blue-tooth device can and optimally be used available resources in order to monitoring network.This comprises link-quality, signal intensity and transmission power level assessment.Link-quality represents the quality of two links between the blue-tooth device.Be worth highlyer, quality is better.The difference of the signal intensity that signal strength expression is measured and optimum reception power bracket (GoldenReceive Power Range) GRPR.On the occasion of expression level how many db (decibel) on GRPR.Negative value represents level how many db (decibel) under GRPR.Null value represents that value is in the GRPR scope.Transmission power level represents the current transmission power level for particular link, and unit is dBm.
Current signal intensity and link-quality can be monitored and be shown; For example show at master controller 120 or primary processor 110, to demonstrate the good degree of network function.Software in master controller 120 or the primary processor 110 also can be made suggestion and/or diagnosis based on these values.Some examples are such as " other device has disturbed network " and " the sensor port distance console is too far away ".Can limit the power of wireless system use to strengthen and extending battery life with the transmission power level indicated number.
Generally speaking, disclose (non-habitual) wireless service system network of special-purpose sealing, wherein the standard bluetooth wireless module in each device of service system is connected.Client's wireless access node be designed to seal based on the wireless network of bluetooth and with standard ethernet network that the service system main frame is connected between bridge.By each service system device programming is thought that relevant embedded Bluetooth module arranges predetermined specific known title and the link secret key is set up the sealing radio network configuration.Each embedded Bluetooth module can be further configured as non-and appear, so it remains the unknown near the non-proprietary service system device of search radio network device.Known, standard, desirable device based on specific proprietary service system programmes to set up blueteeth network to network controller.
In disclosed network configuration.The single primary device is connected command to other proprietary wireless device, these devices are slave unit and the transmission information in response to the instruction of independently installing only.
The realization of the described communication technology is not limited to wheel alignment.They can be used in many other automobile services application of installations, such as wheel balance, tire changer or damaged in collision measuring system.They can also be used for non-automobile and use.
The present invention can realize by adopting traditional material, method and apparatus.Therefore, the details of such material, apparatus and method does not here propose in detail.In the explanation formerly, numerous details has been proposed, such as specific material, structure, chemicals, process etc., to help the thorough understanding to present technique.But, will be appreciated that present technique can be implemented, and need not depend on the details of concrete proposition.In other example, the unspecified processing structure of knowing is in order to can blur necessarily present technique.
Although the front has illustrated which is considered to optimal mode and/or other example, be understood that here and can carry out different modifications, and purport content disclosed herein can realize with example in a variety of forms, and this instruction can be applied to multiple application, and some examples wherein only have been described here.Claim intention contain in the true scope of present technique arbitrarily with whole application, modifications and variations.
Claims (15)
1. a vehicle service system comprises primary processor, master controller and at least one slave unit;
Wherein said master controller is used for the Application standard communication link and described at least one slave unit carries out radio communication;
Wherein said at least one slave unit is used for collecting vehicle data, and via described standard communication link described data transmission is arrived described master controller;
Wherein said master controller comprises processor, and described processor is configured to the vehicle data that pre-service is collected by described at least one slave unit; And
Wherein said primary processor and described master controller communicate with one another, and the data of the processor of described master controller after will processing send to described primary processor in order to further process.
2. system according to claim 1 is characterized in that, described primary processor be connected master controller and connect via Ethernet and link.
3. system according to claim 1 is characterized in that, described system is the vehicle service system, and described data comprise measurement data, and described master controller processor and primary processor are used for based on described measurement data result of calculation.
4. system according to claim 3 is characterized in that, described system is wheel alignment system, and described measurement data is sensing data, and the described result who calculates comprises the automotive wheel orientation angle.
5. system according to claim 1 is characterized in that, described processor is further configured to the executive system maintenance function.
6. system according to claim 1 is characterized in that, described master controller further comprises the communication link that is connected to second system.
7. system according to claim 1 is characterized in that, described master controller further comprises for the reservoir that stores the vehicle normal data, and described master controller processor is configured to retrieval and processes described vehicle standard data.
8. system according to claim 1 is characterized in that, each slave unit has unique identification address for described standard communication link;
Wherein said master controller further comprises input media, and described input media is used for unique identification address of each slave unit is input to described master controller processor; And
Wherein said master controller processor is further configured to sets up wireless network, to be used for only carrying out radio communication with described at least one slave unit based on described unique identification address.
9. a vehicle service system comprises master controller and at least one slave unit;
Wherein said master controller is used for the Application standard communication link and described at least one slave unit carries out radio communication;
Wherein said at least one slave unit is used for collecting the vehicle service data, and via described standard communication link described data transmission is arrived described master controller; And
Wherein said master controller comprises processor, and described processor is configured to pre-service by the vehicle service data of described at least one slave unit collection and the data after described processing is provided.
10. system according to claim 9 is characterized in that, described system is automobile wheel alignment system, and described data are sensing datas, and the data after the described processing comprise the automotive wheel orientation angle.
11. system according to claim 9 is characterized in that, described processor is further configured to the executive system maintenance function.
12. system according to claim 9 is characterized in that, described master controller further comprises the communication link to second system.
13. system according to claim 9 is characterized in that, described master controller further comprises for the reservoir that stores the vehicle normal data, and described master controller processor is configured to retrieval and processes described vehicle standard data.
14. system according to claim 9 is characterized in that, described processor is configured to the data after processing are offered client based on browser as webpage.
15. system according to claim 9 is characterized in that, each slave unit has unique identification address for described standard communication link;
Wherein said master controller further comprises input media, and described input media is used for unique identification address of each slave unit is input to described master controller processor; And
Wherein said master controller processor is further configured to sets up wireless network, to be used for only carrying out radio communication with described at least one slave unit based on described unique identification address.
Applications Claiming Priority (3)
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|---|---|---|---|
| US11/878,025 | 2007-07-20 | ||
| US11/878,025 US8073586B2 (en) | 2007-07-20 | 2007-07-20 | Wireless network and methodology for automotive service systems |
| PCT/US2008/070484 WO2009015021A1 (en) | 2007-07-20 | 2008-07-18 | Wireless network and methodology for automotive service systems |
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| CN101790678A CN101790678A (en) | 2010-07-28 |
| CN101790678B true CN101790678B (en) | 2013-03-27 |
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| EP (1) | EP2171418B1 (en) |
| CN (1) | CN101790678B (en) |
| WO (1) | WO2009015021A1 (en) |
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Also Published As
| Publication number | Publication date |
|---|---|
| US20120042031A1 (en) | 2012-02-16 |
| CN101790678A (en) | 2010-07-28 |
| US8452484B2 (en) | 2013-05-28 |
| EP2171418B1 (en) | 2020-01-08 |
| US20130258902A1 (en) | 2013-10-03 |
| WO2009015021A1 (en) | 2009-01-29 |
| US20160033264A1 (en) | 2016-02-04 |
| EP2171418A4 (en) | 2010-12-01 |
| US20090024272A1 (en) | 2009-01-22 |
| US8073586B2 (en) | 2011-12-06 |
| EP2171418A1 (en) | 2010-04-07 |
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